<!DOCTYPE html>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<style>
p {
    writing-mode:vertical-lr;
    text-combine-upright:all;
    font-size: 0in;
    text-shadow: green -37cm -62in 53cm;
}
</style>
<p>Test for <a href="http://crbug.com/564698">bug 564698</a>.</p>
<p>Zero size font should not crash.</p>
<script>
test(() => {}, 'text-combine-upright:all with zero font size');
</script>
